Railway-car truck



No. 609,785. 7 Patented Aug. 30, I898.

G. J. CAPEWELL.

RAILWAY CAR TRUCK.

(Application filed May 26, 1896. Renewed Ian. 5, 1898.) (No Model.)

lll IlllllllfijllllllllllEgilllllllliflllllilll mllll llllllllllll lll PTENT FFICEQ- GEORGE J. CAPEYVELL, OF HARTFORD, CONNECTICUT.

RAILWAY-CAR TRUCK.

SPECIFICATION forming part of Letters Patent No. 609,785, dated August30, 1898. Application filed May 26,1896. Renewed January 5, 1893- SerialNo- 665,706- (No model.)

To all whom it may concern:

Be it known that I, GEORGE J. OAPEWELL, a citizen of the UnitedStates,residing at Hart-- ford, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements inRailway-CarTrucks, of which the following is a specification.

The invention relates more particularly to the class of trucks providedfor railway-cars designed for high speeds which have two or moretraction-wheels arranged one behind the other centrally of the truck andwheels located on each side of and below the tractionwheels.

The object of the invention is to provide a simple, cheap, strong, anddurable truck with wheels arranged in this manner and formed withgrooved peripheries adapted to travel on and be guided by atraction-rail having broad flat tread-surfaoes and horizontally-arrangedwheels with retaining-flanges held by a firmlybraced light frame, so asto travel close to side rails placed below the traction-rail and preventany possibility of the traction-wheels leaving the traction-rail,without to any extent increasing the friction of the wheels upon oragainst the rails.

Referring'to the accompanying drawings, Figure 1 is a plan of the truckwith the upper frame removed. Fig. 2 is a side view of the truck. Fig. 3is an end view. Fig. -lis a central transverse section on the planeindicated by the broken line of Fig. 1. Fig. 5 is a detail edge view ofone of the tractiomwheels, the retaining-wheels, and a section of thetrack; and Fig. 6 is a similar View showinga modified form oftraction-wheel.

In the views the truck is shown as provided with a pair oftraction-wheels 1, arranged centrally one behind the other. These wheelshave peripheral grooves 2 and wide tread-surfaces. The form oftraction-wheel shown in Fig. 5, which is the same as shown in connectionwith the views of the truck, has its treadsurface on each side of thegroove, while in the form of traction-wheel shown in Fig. 6 thetread-surface is at the bottom of the groove. The traotioirwheels can bemanufacturedwith the sides integral, the grooves being formed during themaking or after the making of the journals 7.

sides, or they can be built up so as to provide the two sides with thegroove between them by placing two or more sections side by side. Shortjournals are provided for the tractionwheels, and these journals turn insuitable bearings connected with the wheel-frame 3.

The wheel-frame shown is arranged horizontally, and depending beneath oneach side of the traction-wheels are the vertical frames 4. Thesevertical frames are bolted to the under side of the horizontal frame andare further connected with the wheel-frame by the brace-rods 5,thatincline outward from the middle of the bottom of the vertical frames tothe middle of the edge of the horizontal frame, and the brace-rods 6,that incline outward and backward and forward from the bottom corners ofthe vertical frames to the corners of the horizontal frame.

Bearings are formed in the vertical frames, and in these bearings areheld the vertical On the lower ends of these journals are secured wheels8, arranged horizontally and adapted to run close to the outside of theside rails located below the tractionrail. These horizontally-arrangedwheels are preferably built up in sections and have wide flatperipheries 9, of cushioning material, and retainingflanges 10, arrangedto run beneath the edges of the side rails.

Upon the upper side of the horizontal traction-wheel frame, at thecorners, are located spiral springs 11, and between the spiral springs,along the sides and across the ends, are located leaf-springs 12. Uponthese springs is supported a top frame 13. This top' frame is connectedby means of a king or pivot bolt 14 with a plate 15, that is adapted tobe connected with the bottom of a carbody. The bolt let may be forgedintegral with the plate or may extend through it. Studs 16 may bearranged to limit the oscillation of the plate on the upper frame. Thetop of the horizontal traction-wheel frame may be provided with a rib 17to add strength to the structure, and through a central perforation 18the king or pivot bolt may be extended, if desired, to aid in holdingthe frames together.

The horizontal traction-wheel frame issimple and strong and can becheaply formed. The vertical retaining-wheel frames are very securelyheld in place and strongly braced in a light simple manner, so that theycannot be Wrenched or sprung out of position. The traction-wheels havewide tread surfaces that can" be provided with a cushioning material,and they are guided along the tractionrail by the grooves in theirperipheries. The retaining-wheels have Wide peripheries that can beprovided with cushioning material and flanges that will by contact withthe under edges of the side rails prevent the tractionwheels frombecoming displaced from the traction-rail. The retaining-wheels arelocated below the traction-wheels in a plane that passes between the twotraction-wheels, which allows a slight oscillation and permits the easyrounding of curves by the traction-wheels, that are held in place by thegrooves in their peripheries and are retained in position by theseretaining-Wheels, and the upper frame, that is pivotally connected withthe car, is

arranged to permit the necessary oscillationfor the truck and thedesired spring or yielding between the car and truck for the comfort ofthe passengers.

The truck is simple, cheap, and strong, and will run easily, lightly,and smoothly on the track provided at rapid rates of speed without nalsfor the traction -wheels, 2, horizontal frame supported by the journalsof the traction-wheels, an open rectangular frame depending verticallyfrom the horizontal frame on each side of the plane of the traction-Wheels, a horizontally-bearing flanged retaining-wheel supported bybearings in each vertical frame below and in a plane extending betweenthe traction-wheels, brace-rods extending from the middle of the lowerend of each vertical frame upwardly and outwardly to the side edges .ofthe horizontal frame, brace-rods extending from the corners of the lowerend of each Vertical frame upwardly and outwardly toward the front andrear corners of the horizontal frame, spiral and leaf springs supportedby the horizontal frame, a similar horizontal frame supported by thesprings, and a plate pivotally connected with the upper frame,substantially as specified.

GEORGE J. OAPEWELL. Witnesses:

H. H. WILLIAMS, E. J. HYDE.

